Hardware requirements are outlined by version in the software requirements link.
IBM Db2® Analytics Accelerator is a high-performance component tightly integrated with Db2 for z/OS®. It delivers high-speed processing for complex Db2 queries to support business-critical reporting and analytic workloads. The accelerator transforms the mainframe into a hybrid transaction and analytic processing (HTAP) environment. It drives out cost and complexity and enables analytics on transactional data as it is generated. Use your business-critical data where it originates to integrate real-time insight with real-time operational decisions.